<span>The earliest fossil
evidence for Homo erectus in Western Europe dates from 1.2 Mya and was found in
<span>Sima del Elefante.</span> Homo erectus means upright man, which is an extinct
species of archaic humans that lived throughout Pleistocene geological era.
They walked just like a modern human with adducted big toe and robust bones. </span>
The scientist most likely found an RNA molecule. The RNA is a single-stranded molecule composed of many nucleotides.
The ribonucleic acid (RNA) is a single-stranded molecule composed of a long chain of consecutive nucleotides.
In RNA, there are four types of nucleotides, each containing one different nitrogenous base, i.e., Adenine, Uracil, Guanine and Cytosine.
In RNA, Uracil nitrogenous bases replace Thymine bases observed in the DNA molecule.
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Answer:
Red blood cells
Explanation:
They transport Oxygen throughout the body.
B. mRNA codon because the DNA doesn’t code for amino acids, the RNA does.
Answer:
Option A, Pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction
Explanation:
Genetics variation allows as organism to evolve in a way to be able to cope up with the existing or changing environmental condition. Now, a Pantala flavescens undergoes sexual reproduction, thus only this creature has the ability among all the given organism to evolve genetically and be able to survive in this environment. All the remaining organisms reproduce asexually and hence there is no variation with in them and hence it would be difficult for these organisms to cope up with changing environment.
Hence, option A is correct.
